diff --git a/client/dcwebui.js b/client/dcwebui.js
index 5fa4704..ca830fc 100644
--- a/client/dcwebui.js
+++ b/client/dcwebui.js
@@ -956,7 +956,7 @@ var contented_load = function() {
 			var val = el("#chatbox").value;
 			for (var i = 0; i < items.length; ++i) {
 				if (val.length > 0) {
-					val.length += " ";
+					val += " ";
 				}
 				val += contented.getPreviewURL(items[i]);
 			}